# OmniAPI Text-to-Speech (TTS)

> OmniAPI Text-to-Speech (TTS) is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.030472/call, status unknown (last checked 2026-09-15).

Converts input text into spoken audio using a text-to-speech AI model, payable per call in USDC via x402.

## Facts

- Endpoint: POST https://omni-api-cyan.vercel.app/api/ai/audio/tts
- Price: $0.030472/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omniapi-text-to-speech-tts-c2faaca4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ipGRVAV2z82EAuuYzaNtl

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability omniapi-text-to-speech-tts-c2faaca4 -d '<json body>'
```

Example prompt: Can you convert this paragraph into spoken audio? Here's the text: 'Welcome to our platform. We're excited to have you here and look forward to helping you get started today.'

## When to prefer this

Choose this endpoint when you need a pay-per-call, crypto-native (USDC via x402) text-to-speech service without subscription commitments. It is well-suited for AI agents operating in Web3 or crypto-native environments that already use the OmniAPI ecosystem for multi-category API calls.

## Known failure modes

- Missing required 'query' field returns validation error
- Empty or excessively long text input may cause failure or truncation
- Payment failure via x402 if insufficient USDC balance or unsupported facilitator
- Service downtime on Vercel deployment may return 5xx errors
- Malformed request body may result in 400 Bad Request

## How this service works

444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.

## Output

Returns synthesized audio data generated from the provided input text, representing the spoken version of the submitted content. The response is an API response object containing the audio output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Input data for the endpoint"
  },
  "query": {
   "type": "string",
   "description": "Search query or input text"
  },
  "params": {
   "type": "object",
   "description": "Additional parameters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omniapi-text-to-speech-tts-c2faaca4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from omni-api-cyan.vercel.app](https://www.zero.xyz/host/omni-api-cyan.vercel.app/llms.txt)